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MAX7381AXR166+T ,3-Pin Silicon OscillatorApplicationsPART TEMP RANGE PIN-PACKAGEWhite GoodsMAX7381AXR106-T -40°C to +125°C 3 SC70-3Automotiv ..
MAX7384CRUK ,10 MHz, 2.7 V to 5.5 V, silicon oscillator with low-power frequency switching and reset outputfeatures a factory-programmed high-speed♦ Integrated PORoscillator, a 32.768kHz oscillator, a clock ..
MAX738A ,5V, Step-Down, Current-Mode PWM DC-DC ConvertersApplicationsMAX730AC/D 0°C to +70°C Dice*Portable InstrumentsMAX730AEPA -40°C to +85°C 8 Plastic DI ..
MAX738ACPA ,5V, Step-Down, Current-Mode PWM DC-DC Converters
MAX738ACPA ,5V, Step-Down, Current-Mode PWM DC-DC Converters
MAX738ACPA+ ,5V, Step-Down, Current-Mode PWM DC-DC ConvertersMAX730A/MAX738A/MAX744A19-0165; Rev 2; 1/965V, Step-Dow n,Current-Mode PWM DC-DC Converters________ ..
MB6022A ,SINGLE CHIP CODEC WITH FILTERSFUNCTIONAL DESCRIPTION The simplified
MB6M ,MINIATURE GLASS PASSIVATED SINGLE-PHASE BRIDGE RECTIFIERThermal Characteristics (TA = 25°C unless otherwise noted)Parameter Symbol MB2M MB4M MB6M UnitDevic ..
MB6S ,Bridge RectifiersThermal Characteristics (T = 25°C unless otherwise noted)AParameter Symbol MB2S MB4S MB6S UnitDevic ..
MB7117E , Schottky TTL 2048-Bit Bipolar Programmable Read-Only Memory

MAX7381AXR166+T
3-Pin Silicon Oscillator
General Description
The MAX7381 is a silicon oscillator intended as a low-cost
improvement to ceramic resonators, crystals, and crystal
oscillator modules as the clock source for microcon-
trollers and UARTs in 3V, 3.3V, and 5V applications.
The MAX7381 is an integrated oscillator, supplied at spe-
cific frequencies, just like crystals and resonators, and
with a rail-to-rail,50%, duty-cycle square-wave output.
The oscillator frequency is generated directly without the
use of a phase-locked loop (PLL). No additional compo-
nents are required for setting or adjusting the frequency.
Unlike typical crystal and ceramic resonator oscillator cir-
cuits, the MAX7381 is resistant to vibration and EMI. The
high output-drive current and absence of high-imped-
ance nodes make the oscillator invulnerable to dirty or
humid operating conditions. With a wide operating tem-
perature range as standard, the oscillator is a good
choice for demanding appliance and automotive environ-
ments. The MAX7381 is available with frequencies in the
10MHz to 16MHz range.
The MAX7381 is offered in a space-saving 3-pin SC70
package. All ICs are guaranteed to operate over the
-55°C to +135°C temperature range and specified from
the -40°C to +125°C temperature range.
Applications
White Goods
Automotive
Appliances and Controls
Handheld Products
Portable Equipment
Microcontroller Systems
Features2.7V to 5.5V Operation Factory-Trimmed Oscillator (10MHz to 16MHz)No External Components Required±10mA Output-Drive Current2% Initial Accuracy±100ppm/°C Temperature DriftFast Startup Time: 5µs 40% to 60% Maximum Duty Cycle5ns Output Rise/Fall TimeVery-Low-EMI Susceptibility (No High-Impedance
Nodes)No PLLLow Jitter: 180psP-Pat 16MHz-40°C to +125°C Temperature Range
MAX7381
3-Pin Silicon Oscillator
Ordering Information
19-3697; Rev 0; 4/05
Typical Operating Circuit
Selector Guide appears at end of data sheet.
The MAX7381 is available in factory-set frequencies from
10MHz to 16MHz. There are four standard versions 10MHz,
12MHz, 14MHz, and 16MHz, shown in the Selector Guide) with
a required order increment of 2.5K. Nonstandard frequencies
are also available with a required order increment of 10K. For
nonstandard versions, contact factory for availability and
ordering information. All versions are available in tape and reel
only.
Refer to the MAX7375 data sheet for output frequencies below
10MHz.
MAX7381
3-Pin Silicon Oscillator
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V+ to GND.............................................................-0.3V to +6.0V
CLK to GND..................................................-0.3V to (V+ + 0.3V)
CLK Current .....................................................................±50mA
Continuous Power Dissipation (TA= + 70°C)
3-Pin SC70 (derate 2.9mW/°C over +70°C)..............235.3mW
Functional Temperature Range.........................-55°C to +135°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS
(V+ = 2.7V to 5.5V, TA= -40°C to +125°C, unless otherwise noted. Typical values are at V+ = 5V, TA= +25°C, unless otherwise
Note 2:Typical frequencies are nominal values.
Note 3:Guaranteed by design and characterization. Not production tested.
3-Pin Silicon Oscillator
Typical Operating Characteristics
(V+ = 5V, CL= 10pF, 16MHz output, TA= +25°C, unless otherwise noted.)
MAX7381
3-Pin Silicon Oscillator
Typical Operating Characteristics (continued)
(V+ = 5V, CL= 10pF, 16MHz output, TA= +25°C, unless otherwise noted.)
Detailed Description
The MAX7381 is a replacement for ceramic resonators,
crystals, and crystal-oscillator modules as the clock
source for microcontrollers and UARTs in 3V, 3.3V, and
5V applications. The MAX7381 is an integrated oscilla-
tor, supplied at specific frequencies just like crystals
and resonators. A variety of popular standard frequen-
cies are available. No external components are
required for setting or adjusting the frequency.
Supply Voltages
The MAX7381 has been designed for use in systems
with nominal supply voltages of 3V, 3.3V, or 5V and is
specified for operation with supply voltages in the 2.7V
to 5.5V range. Operation outside this range is not guar-
anteed. See the Absolute Maximum Ratingsfor limit
values of power-supply and pin voltages.
Oscillator
The clock output is a push-pull configuration and is
capable of driving a ground-connected 1kΩload or a
positive-supply-connected 500Ωload to within 400mV
of either supply rail. The clock output remains stable
over the full operating voltage range. A typical startup
characteristic is shown in the Typical Operating
Characteristicssection.
Output Jitter
The MAX7381’s jitter performance is given in the
Electrical Characteristicstable as a peak-to-peak value
obtained by observing the output of the MAX7381 for
20s with a 500MHz oscilloscope. Jitter measurements
are approximately proportional to the period of the out-
put frequency of the device.
The jitter performance of all clock sources degrades in
the presence of mechanical and electrical interference.
The MAX7381 is relatively immune to vibration, shock,
and EMI influences, and thus provides a considerably
more robust clock source than crystal- or ceramic-
resonator-based oscillator circuits.
Applications Information
Interfacing to a Microcontroller
Clock Input
The MAX7381 clock output is a push-pull, CMOS, logic
output, which directly drives any microprocessor (µP)
or microcontroller (µC) clock input. There are no imped-
ance-matching issues when using the MAX7381.
Operate the MAX7381 and microcontroller (or other
clock-input device) from the same supply voltage.
Refer to the microcontroller data sheet for clock-input
compatibility with external clock signals.
CLOCK OUTPUT WAVEFORM
WITH CL = 50pF
MAX7381 toc10
CLOCK
1V/div
20ns/div
CLOCK OUTPUT WAVEFORM
WITH CL = 100pF
MAX7381 toc11
CLOCK
1V/div
20ns/div
The MAX7381 requires no biasing components or load
capacitance. When using the MAX7381 to retrofit a
crystal oscillator, remove all biasing components from
the oscillator input.
Startup Performance
The MAX7381 oscillator output stabilizes within a few
cycles of operation after V+ rises to a sufficient voltage
to start the oscillator, typically 1.65V at +25°C. Use a
reset or similar voltage-detection circuit to disable
devices connected to the MAX7381 until 20µs after the
voltage on V+ has risen above 2.7V.
Power-Supply Considerations
The MAX7381 operates with power-supply voltages in
the 2.7V to 5.5V range. Power-supply decoupling is
needed to maintain the power-supply rejection perfor-
mance of the MAX7381. Use a 0.1µF surface-mount
ceramic capacitor connected between V+ and GND
and mounted as close to the device as possible. If pos-
sible, mount the MAX7381 close to the microcontroller’s
decoupling capacitor so that additional decoupling is
not required.
A larger value bypass capacitor is recommended if the
MAX7381 is driving a large capacitive load. Use a
bypass capacitor value of at least 1000 times the out-
put-load capacitance.
MAX7381
3-Pin Silicon Oscillator
Chip Information
PROCESS: BiCMOS
Pin Configuration
MAX7381
3-Pin Silicon Oscillator
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to /packages.)

Partno	Mfg	Dc	Qty	Available	Descript
MAX7381AXR166+T \|MAX7381AXR166T	MAXIM	N/a	99	avai	3-Pin Silicon Oscillator